| the perinuclear space of pancreatic acinar cells and the synthetic pathway of zymogen in scorpaena scrofa l.: ultrastructural aspects. | electron microscopic examination of exocrine pancreatic tissues from the fish scorpaena scrofa l., probably captured while replenishing the acinar cells, shows two main functional cell morphologies of the same cell type. one cell functional aspect contains numerous well-contrasted small vesicles, the zymogenic vesicles. the other functional morphology is mainly represented by a few cells containing large apical zymogen vesicles with many empty rer cisterns. in our observations, the zymogenic ves ... | 2008 | 17961618 |
| a light and electron microscopic study on the organization of the testis and the semicystic spermatogenesis of the genus scorpaena (teleostei, scorpaenidae). | the testicular organization and semicystic spermatogenesis of scorpaena porcus and scorpaena scrofa are analyzed by means of optic and electron microscopy and immunohistochemical techniques. the testicular structure of s. porcus and s. scrofa belongs to the unrestricted spermatogonial type, but has typical features of the restricted type. moreover, the structure presents an epithelioid arrangement of sertoli and germ cells rather than the germinal epithelium that appears in the majority of teleo ... | 2009 | 19123239 |
| site influence in parasite distribution from fishes of the bonifacio strait marine reserve (corsica island, mediterranean sea). | the spatial distribution of parasite communities from teleost fishes (diplodus vulgaris, mullus surmuletus, pagellus erythrinus, phycis phycis, scorpaena scrofa and symphodus tinca) was studied in the bonifacio strait marine reserve (corsica island) with different protection levels. canonical correspondence analysis was used to study spatial patterns and to quantify the importance of site influence on parasite communities. to supplement these results, we used the indicator species analysis (indv ... | 2009 | 19132390 |
| systematics of scorpaeniformes species in the mediterranean sea inferred from mitochondrial 16s rdna sequence and morphological data. | genetic and morphological divergence and phylogenetic relationships of scorpaeniformes fish including two genera and six species, helicolenus dactylopterus, scorpaena maderensis, scorpaena porcus, scorpaena elongata, scorpaena scrofa, scorpaena notata, living in the mediterranean sea, were investigated with morphological and mitochondrial 16s rdna sequence data. the mean nucleotide diversity was found to be 0.0792. average sequence divergence between species of sebastidae and scorpaenidae was 8. ... | 2009 | 19777968 |
| digestive alkaline proteases from zosterisessor ophiocephalus, raja clavata, and scorpaena scrofa: characteristics and application in chitin extraction. | the aim of this work was to study some biochemical characteristics of crude alkaline protease extracts from the viscera of goby (zosterisessor ophiocephalus), thornback ray (raja clavata), and scorpionfish (scorpaena scrofa), and to investigate their applications in the deproteinization of shrimp wastes. at least four caseinolytic proteases bands were observed in zymogram of each enzyme preparation. the optimum ph for enzymatic extracts activities of z. ophiocephalus, r. clavata, and s. scrofa w ... | 2011 | 22312476 |
| optimization of proteins and minerals removal from shrimp shells to produce highly acetylated chitin. | chitin and derivatives used for biomedical or pharmaceutical applications require a high level of purity and quality that are difficult to achieve. in this study, we propose to optimize the extraction of chitin in order to obtain pure product keeping a structure as close as possible to the native form. thus, demineralization step was firstly optimized using response surface methodology. in the optimized conditions predicted by the model, the obtained chitin has an acetylation degree (da) and a d ... | 2016 | 26299708 |